ctime

        # File.ctime

(from ruby core)
---
    File.ctime(file_name)  -> time

---

Returns the change time for the named file (the time at which directory
information about the file was changed, not the file itself).

*file_name* can be an IO object.

Note that on Windows (NTFS), returns creation time (birth time).

    File.ctime("testfile")   #=> Wed Apr 09 08:53:13 CDT 2003


(from ruby core)
---
    file.ctime  ->  time

---

Returns the change time for *file* (that is, the time directory
information about the file was changed, not the file itself).

Note that on Windows (NTFS), returns creation time (birth time).

    File.new("testfile").ctime   #=> Wed Apr 09 08:53:14 CDT 2003